Runner option

[gwynjudd]

Resoves #65

This option allows the caller to override the default jasmine-runner.js. My use case is to allow me to use the junit-reporter from https://github.com/larrymyers/jasmine-reporters. To use the junit-reporter in phantomjs, it is necessary to make significant changes to the runner script:

It is strongly recommended to use the provided script to run your test suite using PhantomJS. If you want to use your own PhantomJS runner, you will need to inject a __phantom_writeFile method, and also take care to correctly determine when all results have been reported.

[dflynn15]

Would you mind checking out PR #62? It seems to be doing the same thing you are going for with a example task and it may be a little cleaner (it doesn't create the runner variable in two places). I want to make sure there isn't anything that you did that would be unique or different.

[gwynjudd]

@dflynn15 the change in #62 wouldn't suit my needs - I found that the lib\jasmine-runner.js will exit too early and I had to make fairly significant changes to it to allow the junit-reporter to work correctly

[dflynn15]

I am not sure I understand this PR then. Both this PR and #62 allow for an optional reporter to be specified, otherwise the default included in the repository is utilized.

If there is something I am missing please let me know as they both seem to be approaching the same problem.

[gwynjudd]

@dflynn15 they do different things. #62 lets you replace the reporter (default /lib/terminal-reporter.js). This lets you replace the runner (default /lib/jasmine-runner.js).

[dflynn15]

And this is why you don't look at PRs on your phone... 😭 Quick last, nit-picky request. Could you move the var runner = up instead of having to instantiate it twice?

[gwynjudd]

@dflynn15 done

[dflynn15]

Thanks!!